Home / 579,672.10-869,508.15-158,947.30

Finding the Fourth Proportional to 579,672.10, 869,508.15 and 158,947.30

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Solution

The fourth proportional to 579,672.10, 869,508.15 and 158,947.30 is: 238,420.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,672.10 : 869,508.15 = 158,947.30 : x
  2. Step 2: Convert to fraction form
    579,672.10/869,508.15 = 158,947.30/x
  3. Step 3: Cross multiply
    579,672.10x = 869,508.15 × 158,947.30
  4. Step 4: Simplify right side
    579,672.10x = 138,205,972,770.50
  5. Step 5: Solve for x
    x = 138,205,972,770.50/579,672.10
  6. Step 6: Final answer
    x = 238,420.95

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.